Abstract:
A main engine (14) mounted auxiliary power unit (30) comprises an auxiliary power unit (31) integrated with a primary gas turbine engine (14) into a single power plant suited for aircraft applications. The auxiliary power unit (30) can be mounted within an engine core compartment of the main engine or at the main engine aft center body. The integration of the auxiliary power unit (30) provides for installation and certification cost savings to the airframer by eliminating the need for mounting an auxiliary power unit (30) to the tail section of the aircraft.
Abstract:
The present invention relates to an integrated aircraft system which comprises an aircraft frame (4), a primary gas turbine engine (14) mounted within the nacelle cowl (12), a secondary power system (30) incorporated within the nacelle cowl and being driven by a flow of air created by or through the engine, and an electrical power and cooling unit for supplying electrical power and cabin cooling air. The electrical power and cooling unit is pneumatically driven by engine bleed air.